DA-251 Portable Amplifier

    • Rugged and durable design 

    • Digital amplifier circuitry ensures minimum battery power consumption 

    • VHF wireless system featuring more than 40 selectable frequencies 

    • Operating range of more than 30 meters 

    • Bodypack transmitter featuring companding circuit, powered by 2pcs 9V tier batteries 

    • Microphone with high quality capsule for maximum feedback rejection and consistent sound quality 

    • Built-in Ni-MH rechargeable batteries and auto-recharge circuit 

    • MIC-IN, AUX-IN and LINE OUT sockets for convenient connection with other audio equipment 

    • RF indicator, recharging indicator available on the receiver

    Product Detail

    • Specification
    • Application
    • Frequency Response: 220MHz-270MHz
              (enjoying more than 40 kinds of frequency spot)
    • Receiving Sensitivity: -80dBm (S/N≥30dB)
    • Squelch Control: Noise-Lock
    • Resonance Interfere Rate: >50dB
    • False Image Interfere Rate: >50dB
    • Total Harmonic Distortion: <1% (1kHz)
    • Output Power: Approx. 10hrs
    • S/N Ratio: >40dB 
    • Frequency Response: 60Hz-12.5kHz
    • Input Signal: Wired MIC x 1 Wireless MIC x 1
    • Speaker: 4Ω/10W
    • Power Requirements: DC 12V or 10.8V
    • Operating Range: 30m
    • Net Weight: 1.1kg
    Transmitter
    • Frequency Steadiness: ±0.005%
    • Harmonic Rejection: ≥40dB
    • Current Consumption: About 25mA 
    • Operating Voltage: DC 9V
    Teaching, public address, outdoor activity
    • Specification
    • Application
    • Frequency Response: 220MHz-270MHz
              (enjoying more than 40 kinds of frequency spot)
    • Receiving Sensitivity: -80dBm (S/N≥30dB)
    • Squelch Control: Noise-Lock
    • Resonance Interfere Rate: >50dB
    • False Image Interfere Rate: >50dB
    • Total Harmonic Distortion: <1% (1kHz)
    • Output Power: Approx. 10hrs
    • S/N Ratio: >40dB 
    • Frequency Response: 60Hz-12.5kHz
    • Input Signal: Wired MIC x 1 Wireless MIC x 1
    • Speaker: 4Ω/10W
    • Power Requirements: DC 12V or 10.8V
    • Operating Range: 30m
    • Net Weight: 1.1kg
    Transmitter
    • Frequency Steadiness: ±0.005%
    • Harmonic Rejection: ≥40dB
    • Current Consumption: About 25mA 
    • Operating Voltage: DC 9V
    Teaching, public address, outdoor activity